Clo veb



' I I 2-Shets -Sheet'1; l- BIRDSELL. Cfover Hulier.

Patented May 23, 1848.-

I 2 Sheets-Sheet 2. J. B'IRDSELL.

Clover Huller.

No. 5,599. Patented May 23, 1848.

N. PETERS. Phowuma n hnn \Vnhinglon. D4 0 UN TED STAS PATENT O JAMESBIRDSELL, OF HAMORTON, PENNSYLVANIA.

CLOVER-HULLER.

Specification of Letters Patent No. 5,599, dated May 23, 1848'.

To all whom it may concern Be it known that I, JAMES BIRDSELL, ofHamorton, in the county of Chester and State of Pennsylvania, haveinvented a new and useful Improvement in Machines for HullingClover-Seed, which is described as follows, reference being had to theannexed drawings of the same, making part of this specification.

Figure 1, is a perspective view of the machine. Fig. 2 is 'a verticallongitudinal section through the same. Fig. 3 is a cross section of therim of the wheel. Fig. 4 is an elevation of the guard or rack.

Similar letters in the figures refer to corresponding parts.

A is the frame of the machine, made of an oblong form of suitable size,strength, and material for the purpose designed.

B is a revolving cylindrical wheel, secured to a horizontal shaft B,turning in suitable boxesin the frame, composed of two circular uprightrims a, a, arranged parallel to each other, and connected together attheir inner edges or peripheries, by a circular rim 5, extending fromone to the other, and secured to the outer extremities of the radialarms Z of the horizontal shaft, and covered at their outer edges withsheet iron 0, eX- tending around their peripheries and from one to theother perforated with openings punched from the inside, so as to formprotuberances on the periphery of the wheel.

0 is a concave, hinged near its upper end at m and suspended at thatpart, on a rock shaft (Z, having journals on its ends, inserted inboxes, k, keyed to horizontal timbers A of the frame by keys n so as toallow them to be moved horizontally, to regulate the space between thecylindrical wheel and concave. This concave extends about two thirdsaround the wheel B, commencing near the top of the same, its sides orrims overlapping the circular rims a, of the wheel, and is lined on theinner periphery of its lower hinged part with sheet iron e, perforatedwith openings punched from the outside, and extends outward from thewheel, on a tangential line, at its upper end, as represented in Fig. 2,at 0 D are vertical thumb screw rods, passing through female screws inprojections f, on the sides of the horizontal timbers of the frame, oneach side of the cylindrical wheel, and terminating opposite the lowerpart of the concave, and are designed to regulate the distance betweenthe lower part of the concave and the wheel, by their lower ends formingstops, against which a block 9, projecting from the sides of the lowerpart of the concave, rests.

E is a curved spring, secured to one of the transverse end timbers ofthe frame, and extending downward in a curved direction, and restingagainst the under side of the concave, for keeping the projections g onthe sides of the concave, against the ends of the thumb screw rods, andforcing the concave upward toward the wheel as far as the stops D willallow it to rise. F is another curved spring, inserted in an opening inthe upper surface of the rock shaft cl, and extending upward from thesame, and resting against the upper tangential part of the concave forkeeping it in its proper relation to the lower part of the same.

G is an inclined hopper and spout, ar-

ranged above the cylindrical wheel, its bottom being tangential to theperiphery of the same as at G and resting against the inclined end ofthe upper part of the concave, at one end as at G and secured on ahorizontal rock shaft it, near the other end, said rock shaft havingjournals on its ends, turning in sliding boxes I in the frame, so as toallow of the upper end of the hopper and spout being raised and loweredto alter its angle of inclination. H are inclined pins, or bars, securedto a transverse bar in the hopper and spout, and extending to near thelower part of the same, forming a guard or rack for preventing theentrance of straw, and like matter, into the machine.

' I are the dovetailed sliding boxes, in which the journals of the rockshaft turn, moving between guides, secured to uprights z', of the frame,said uprights having grooves in' their upper ends to admit of the riseand fall of the shaft.

I are screw bolts, passing through the sliding boxes and grooves j, inthe uprights i, and provided with nuts, for sustaining the sliding boxesin their proper positions.

J are pins projecting from the rims of the cylindrical wheel, at suchpoints on their surfaces as to strike the inclined lower edges of thesides of the hopper and spout at g, in their passage around with thewheel, and cause it to be rocked on its shaft h.

K is a pinion or cog wheel secured on the shaft of the cylindrical wheelB. L is a larger cog wheel, meshing in gear with the pinion or cog wheeljust mentioned, secured on a horizontal shaft M, turning in boxes in theframe, and provided with a crank N, on its outer end, for giving motionto the machine.

0 isa spring, secured to a cross bar in the hopper and spout, andresting against the inside of the upper part of the concave, C, forassisting to bring the hopper and spout, back to its position, whenraised by the pins J.

Operation: The hopper and spout G, and concave C being properly adjustedby the screw bolts I, thumb screw rods D, and

keys, n, and power applied to the crank N, so as to turn the cylindricalwheel B with great velocity, causing the pins J, projecting from thesides of the same, to strike the lower edge of the hopper and spout, andshake the same. The clover seed to be hulled is introduced to the hopperand spout, and is conducted between the upper hinged part of the concaveC, and cylindrical wheel, B, being separated, in its passage throughsaid concave and spout, from the straw and other extraneous matter, bythe inclined pins, or bars H, and is drawn violently between theroughened sheet iron surface 0, c, of the concave, and cylindricalwheel, and effectually hulled and discharged from between the same, atthe lower end of the concave, into a proper receptacle placed there forits reception, the springs E, F, pressing against the upper and lowerhinged parts of the concave, allowing those parts to yield to'the seedin its passage through, and when it becomes choked in the same.

What I claim as my invention and desire to secure by Letters Patentis- 1. The combination of the adjustive hinged concave and rotaryroughened hulling wheel in the manner and for the purposeherein'setforth.

2. I claim the combination and arrangement of the screw rods or stops D,springs E, F and keys n for adjusting the concave C in relation to thewheel B as described.

3. I likewise claim the manner of combining the hopper and spout andspring 0 with I WM. P. ELLIOT, EDMUND MAHER.

